Alpha: move dsputil prototypes to a header file

[ffmpeg] / libavcodec / mpegaudio.h

diff --git a/libavcodec/mpegaudio.h b/libavcodec/mpegaudio.h
index e8eb1abd708f4cd705d072ac053cfb84f280e87f..94e9f59ef0ec91df0cfd22a8983f3271467e1f27 100644 (file)
--- a/libavcodec/mpegaudio.h
+++ b/libavcodec/mpegaudio.h
@@ -19,7 +19,7 @@
  */
 
 /**
- * @file mpegaudio.h
+ * @file libavcodec/mpegaudio.h
  * mpeg audio declarations for both encoder and decoder.
  */
 
@@ -27,9 +27,11 @@
 #define AVCODEC_MPEGAUDIO_H
 
 #include "avcodec.h"
-#include "bitstream.h"
+#include "get_bits.h"
 #include "dsputil.h"
 
+#define CONFIG_AUDIO_NONSHORT 0
+
 /* max frame size, in samples */
 #define MPA_FRAME_SIZE 1152
 
@@ -86,29 +88,55 @@ typedef int32_t MPA_INT;
 #define BACKSTEP_SIZE 512
 #define EXTRABYTES 24
 
-struct GranuleDef;
+/* layer 3 "granule" */
+typedef struct GranuleDef {
+    uint8_t scfsi;
+    int part2_3_length;
+    int big_values;
+    int global_gain;
+    int scalefac_compress;
+    uint8_t block_type;
+    uint8_t switch_point;
+    int table_select[3];
+    int subblock_gain[3];
+    uint8_t scalefac_scale;
+    uint8_t count1table_select;
+    int region_size[3]; /* number of huffman codes in each region */
+    int preflag;
+    int short_start, long_end; /* long/short band indexes */
+    uint8_t scale_factors[40];
+    int32_t sb_hybrid[SBLIMIT * 18]; /* 576 samples */
+} GranuleDef;
+
+#define MPA_DECODE_HEADER \
+    int frame_size; \
+    int error_protection; \
+    int layer; \
+    int sample_rate; \
+    int sample_rate_index; /* between 0 and 8 */ \
+    int bit_rate; \
+    int nb_channels; \
+    int mode; \
+    int mode_ext; \
+    int lsf;
+
+typedef struct MPADecodeHeader {
+  MPA_DECODE_HEADER
+} MPADecodeHeader;
 
 typedef struct MPADecodeContext {
-    DECLARE_ALIGNED_8(uint8_t, last_buf[2*BACKSTEP_SIZE + EXTRABYTES]);
+    MPA_DECODE_HEADER
+    uint8_t last_buf[2*BACKSTEP_SIZE + EXTRABYTES];
     int last_buf_size;
-    int frame_size;
     /* next header (used in free format parsing) */
     uint32_t free_format_next_header;
-    int error_protection;
-    int layer;
-    int sample_rate;
-    int sample_rate_index; /* between 0 and 8 */
-    int bit_rate;
     GetBitContext gb;
     GetBitContext in_gb;
-    int nb_channels;
-    int mode;
-    int mode_ext;
-    int lsf;
-    DECLARE_ALIGNED_16(MPA_INT, synth_buf[MPA_MAX_CHANNELS][512 * 2]);
+    DECLARE_ALIGNED(16, MPA_INT, synth_buf)[MPA_MAX_CHANNELS][512 * 2];
     int synth_buf_offset[MPA_MAX_CHANNELS];
-    DECLARE_ALIGNED_16(int32_t, sb_samples[MPA_MAX_CHANNELS][36][SBLIMIT]);
+    DECLARE_ALIGNED(16, int32_t, sb_samples)[MPA_MAX_CHANNELS][36][SBLIMIT];
     int32_t mdct_buf[MPA_MAX_CHANNELS][SBLIMIT * 18]; /* previous samples, for layer 3 MDCT */
+    GranuleDef granules[2][2]; /* Used in Layer 3 */
 #ifdef DEBUG
     int frame_count;
 #endif
@@ -128,6 +156,7 @@ typedef struct HuffTable {
 
 int ff_mpa_l2_select_table(int bitrate, int nb_channels, int freq, int lsf);
 int ff_mpa_decode_header(AVCodecContext *avctx, uint32_t head, int *sample_rate, int *channels, int *frame_size, int *bitrate);
+extern MPA_INT ff_mpa_synth_window[];
 void ff_mpa_synth_init(MPA_INT *window);
 void ff_mpa_synth_filter(MPA_INT *synth_buf_ptr, int *synth_buf_offset,
                          MPA_INT *window, int *dither_state,